[Asterisk-Users] Problem, to register an ata on an asterisk

[asterisk-ml at hnw-net.de]

Hello,

I hope, somone can help me.

When I try to register an ata (sipura 2002 for example), it is successfull, when
a device is installed since a few weeks on the asterisk. 

It isn´t successfull, when it is a completly new device, I added to the asterisk.

Have someone any idea?

Many thanks!

Hubertus Niewel